Whoever answers number 20 I will give 10 points and brainliest!!! U have to find the area

Exact Form:

a=35/16

Decimal Form:

a=2.1875

Mixed Number Form:

a=2 3/16

35/16 or 2 3/16 or 2.1875

Step-by-step explanation:

Step-by-step explanangle P + angle R = 180

angle O + angle Q = 180

Here, they are only interested in R, therefore the first equation will be enough to solve for R.

angle P + angle R = 180

y + (3y + 8) = 180

We need to solve for y, so put that y value in (3y + 8) to find angle R.

y + (3y + 8) = 180

y + 3y + 8 = 180

We add the y terms: 4y + 8 = 180

Subtract 8 from both sides: 4y = 180-8 = 172

Divide both sides by 4

y = 172/4 = 43

Angle R = 3y + 8

Put y = 43 and calculate R.

R = 3(43) + 8

R = 137

Therefore, the measure of angle R is 137.ation: